Dish-washing machine.



No. 760,777. PATENTE'D MAY 24','1904.4

' I c. SL-GHAMBERLAIN.

DISH WASHING MACHINE.

, APPLICATION FILED JULY 23, 190s. I0 MODEL.

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i UNITED STATES .latentedMay 24, 1904.

P ATENT CHARLES s. CHAMBERLAIN, or EMERYVILLE, CALIFORNIA.

DISH-FWASHIING MACHINE.

SPEdIFIGATION forming part of Letters Patent N0. 760,7 77, dated May 24, 1904.

' I v v Application filed July 23,1903. Serial No. 166.767- (N model.) i

To all whon' it may concern:

Be it known that I, CHARLES S. CHAMBER- LAIN, a citizen of the United States, residing at San Pablo avenue and Forty-fifth street,

-En 1eryville,in'the county of 'Alamed a and State of California, have invented certain new and useful Improvements in Dish-Washing Machines; and I do hereby'de'clarethe following to be a full, clear, and exact description of said invention, such as will enable'others skilled in the art to which it most nearly appertains to make, use, and practice the same.

i This invention relates to improvements in dish-Washing machines,.and has for its object the thorough washing of dishes in large bulk Without breaking or chipping and with the minimum eifort and maximum speed.

Broadly, the invention consists of 'a table having two wells having parallel walls and adapted to respectively contain washing and rinsing water, both being provided with means for maintaining the Water boiling or at any desired temperature. The dishes are stacked within a bucket having a perforated bottom, (wire-netting,) being securely held in position by a rack. The walls of the bucket are parallel with the walls of the wells with a slight clearance, which permits the bucket to be rapidly raised and lowered, whereby a piston action is secured,-the movement being produced by the Windlass mounted in a traveling crane adapted to travel the length of the table to successively present the bucket to the washing and rinsing wells. y

In the drawings, Figure 1' is an end elevation of a washing-machine constructed in ac- Y cordancewith this invention, the table, well,

and bucketbeing shown in cross-section on the line X X, Fig. 2. Fig; 2 is a front elevation of the same on a reduced scale. Fig. 3-

is a plan view of" the bottom of the bucket. Fig. 4 is a perspective of therack for holding the dishes within the bucket.

In detail the construction consists of the table A, supportedon the legs A and provided with the splash-rail A to lead the splash-water back into the wells. The wells B and B are hermetically attached to the under side of the table coincident with suitable openings therethrough, the weight being supported'by the 'legs'B resting upon the floor C. The bucket D consists of a cylinder adapted suitable alkali solvents therein. In constructing the bucket it is vitally important that the bottom D be placed slightly above the lower edge of the bucket-wall. This forces the water up through the body of the bucket and its contents. 1fv the bottom of the bucket were flush, the displacement would be lateral, forcing the water up the sides between the bucket and Well sides.

This present construction is calculated for restaurant and hotel use, Where a largebulk of dishes have to be handled, to facilitate which the Windlass E, operated by the crank E, upon which the belt E from the bucket and over the pulley E is wound. To further expedite handling, the frame F, in which the Windlass mechanism is mounted, is adapted to travel the length of the table on the rollers F, engaging the tracks F secured to the table. One of said tracks is mounted on an elevated support F whereby the bucket D may be readily reached without interference from the frame F.

The wells are adapted to be filled with hot water from the service-pipe G through the' valves Gr. "Each Well is provided with'the upper and lower drains H and H. ply and drain pipes, provided with suitable valves, admit of a regulation to preserve a determined level of flowing water in each well. The drains H and H lead to a main drain Z, extending along floor. C, and a gas or oil heater I is provided under each well to keep up the temperature of the water.

.90 The sup- Knives, forks, spoons, and the like are more satisfactorily washed separately from the other dishes. The construction of the bucket and well are similar in every respect to that described above except as the size of the machine, the table and traveling crane being omitted and a lid added to' the bucket. The forks are dropped into the' bucket tines down,

so that they protrude through the bottom of the bucket, the other articles being thrown in indiscriminately. When the bucket is raised and lowered (by hand) Within the well, the water is shot upward among the articles, and the protruding tines of the forks striking the bottom of the well scrape against the wire-netting of the bottom of the bucket, effectually dislogding any food lodged between the tines.

In operation the bucket is set on the table at the left end and loaded with dishes, then hooked to the belt E raised by the windlass, carried forward coincident with the first well, and lowered thereinto and the dishes effectively Washed as described, then raised and rolled forward and lowered into the second well and then roughly rinsed in the water therein,

raised and rolled forward and set down on the right end of the table in reach of the dish- Wiper, this process being carried on constantly without the necessity of the operative lifting any weight in excess of the heaviest single dish.

Having thus described this invention, what is claimed,and desired to be secured by Letters Patent, is

A dish-washing machine comprising a table supporting wells adapted to contain water, a track located on one side of said table, a second track located on the opposite side of the table and elevated above the plane of the former track, a frame having an overhanging portion bearing on said elevated track, a Windlass carried by said frame, and a bucket detachably connected to said Windlass and adapted to bereciprocated in said wells.

In testimony whereof I have hereunto set my hand this 30th day of J unc, 1903.

CHARLES S. CHAMBERLAIN.

Witnesses:

(also. F. HATTON, BALDWIN VALE. 

